Eyeglasses.



N0. 766,572. PATENTED AUG. 2, 1904. L. E. ADT.

EYEGLASSES.

APPLICATION FILED AUG.171 1903.

N0 MODEL.

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\VitnesseS. glgventor. $02464 WW Attorney UNITED STAT S Patented August 2, 1904.

LEO F. ADT, OF TROY, NEW YORK.

EYEGLASSES.

SPECIFICATION forming part of Letters Patent No. 766,572, dated August 2, 1904.

Application filed August 1'7, 1903- To (LU 11.71.0710 it may concern:

Be it known that I, LE0 F. An'r, of Troy, in the county of Rensselaer and State of New York, have invented certain new and useful Improvements in Eveglasses; and I do hereby declare the following to be a full, clear, and exactdescription of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference-numerals marked thereon.

My present invention relates to improvements in eyeglasses; and it has for its object the production of a device of this character wherein the bridge-spring and guards are so constructed and arranged that a separating motion of the lenses in a horizontal plane will produce a corresponding motion of increased magnitude in the guards, such motion of the lenses exerting a strain upon certain portions of the spring, the reaction of whiehwill tend to proximate said guards, also to provide a device of this character wherein any angle of adjustment of the spring may be readily and accurately secured in order to properly lit the device to the eyes and nose of the wearer.

Other features of novelty and advantage will be hereinafter more fully described, and pointed out in the claims hereunto annexed.

In the drawings, Figure 1 is a rear elevation of a device embodying my invention. Figs. 2 and 3 are plan views showing the guards or nose-clamps in their normal and separated positions. respectively. Fig. lis a transverse sectional view on the line I 4, Fig. 1, looking toward the left. Fig. 5 is a perspective view of a modified form of my invention, and Fig. 6 is a detail view of the guard or nose-clamp removed from the spring.

The same numerals of reference designate similar parts in the several views.

In order that a more complete understanding may be had of my said invention, referenee will be had to the herein-shown embodiment thereof, wherein 1 designates the bridgespring, composed of any suitable elastic material and arched centrally to conform to and, if desired, tit upon the nose of the wearer. The extremities 2 2 of this spring extend downwardly from the central portion there- (No model.)

of and bending rearwardly and doubling upwardly form loops 3 3, the arms of which preferabl y curve outwardly to conform to the contour of the nose. The free ends of the loops thus formed are then bent slightly forwardly and thence upwardly to form a narrowed or reduced portion L at the upper end of each loop, said ends being thence extended outwardly and doubled back upon themselves to provide the attaching ends 5 5, through which may be passed screws 6 6, carried by the attaching-clips 7 7 adapted to be fitted upon the inner or proximate ends of the lenses 8 8. Over these loops 3 3, above described, are adapted to be fitted the arms of guards or nose-clamps of any desired form, and in the present embodiment the end of the arm 9 of each guard 10 is folded upon itself to form a loop or equivalent portion 11, the aperture of which is of such dimensions that said loop may be slipped up over the loops 3 3, from the lower ends thereof, until they rest in the narrowed portion or neck 4:, the stress tending to separate the arms of said loops 3 3 normally retaining said guards in their proper positions. However, when the arms of said loops are pressed together to the proper extent the portion 11 of the guards may be readily slipped down and completely removed from the loops 3 3. Therefore it will be obvious that in forming a bridge-spring in the manner hereinbefore described the guards may be readily removed from the loops and the arms thereof bent in such manner as to vary to the desired degree the relative positions of the guards and of the lenses in both a horizontal and vertical plane, and thereby enable the utmost facility and range of adjustment in fitting a device of this character to the eyes and nose of the wearer. This removability of the guards also enables other forms or those having differentlyshaped engaging ends or portions to be employed and readily applied. In the form of my invention shown in Fig. 6 loops 12 12 are formed in the spring, preferably at points between the loops 3 3 and the attaching ends 5 5, by means of which any desired adjustment of the lenses, such as for the pupillary distance or adjustments thereof laterally or in a vertical plane, may be secured by properly twist ing or bending the material with any -suitable 7 instrument, and as these loops 12 12 may be disposed in .a horizontal plane, as shown, they.

a relativemotionwill take place between said arms in such a manner as to cause the guards 10 10, having bearings thereon, to separate. This separating action of the lenses will produce a torsional strain upon the loops 3 3, the reaction of which will produce a stress tending to proximate said guards when said lenses are released,'causing a pressure to be exerted by said guards upon the wearers nose, which pressure maybe adjusted to the desired degree by removing the guards and properly bending the arms of said loops 3 3 and then replacing the guards.

It will be obvious that a device of this character produced in accordance with my invention may be readily fitted to and removed from the nose and Will provide a maximum range of adjustment of the parts to insure the proper fitting of the device by the optician. It will also be understood that various forms of guards may be employed in connection with a spring of thecharacter herein described by folding or otherwise forming the arm or shank thereof in such a manner as to provide bear ings thereon for the arms of the loops 3 3. As the curvature of the loops 3 3 may conform to the configuration of the nose and said loops are adapted to rest thereon, it will be seen that a firm and proper seating of the device is secured by the extensive bearing-surface provided.

By locating the guards immediately in rear of the resilient loops it will be observed that a maximum separating motion thereof is secured with a given motion of the lenses, and in attaching the guards to the spring at points substantially in line with the points of attachment of the lenses the action of the spring will be in substantially a horizontal plane, thereby avoiding all forces tending to destroy the proper relation between the lenses when the eyeglass is fitted to the nose of the wearer.

I claim as my invention 1. In eyeglasses, the combination with the lenses, and a spring attached to said lenses and having resilient loops formed therein, of opposing nose-guards each engaging both arms of-one of said loops and arranged to separate when relative motion takes place between said arms.

2. The combination with the lenses, and a spring attached thereto and having resilient loops formed therein adjacent the attached portions thereof, of nose-guards having portions engaging both arms of each loop about Which said guards are adapted to move.

3. The combination with the lenses, and a spring having its extremities attached thereto and resilient loops formed therein between the attached and central portions thereof, of guards removably fitted to said loops and embracing the arms thereof to form bearings for said guards.

4. The combination with the lenses, and a spring connecting said lenses and having resilientloops formed therein provided with narrowed or reduced. portions, of guards having arms adapted to be fitted removably over said loops and to rest in said reduced portions.

5. The combinationwith the lenses and a' spring attached thereto and having loops formed therein in proximity to said attached portions, of guards each having bearings upon both arms of one of said loops and adapted to move upon said hearings to separate when said lenses are drawn apart.

6. The combination with the lenses, and a therein, the free arms of which are attachedto said lenses, of guards having bearing portions removably fitting said loops and engaging the arms thereof, said loops being so arranged that motion tending to separate said lenses will produce relative motion between the arms of said loops tending to separate said guards.

8. The combination with the lenses, and a spring having its extremities attached thereto and having resilient loops formed therein between said attached and central portions thereof, and bends formed in said spring adjacent said attached portions adapted to be adjusted to vary the relative positions of the lenses, of guards having bearing portions engaging the arms of said loops and adapted to move about said loops in substantially a horizontal plane.

9. The combination with the lenses, and a spring attached thereto and having loops formed therein between the attached and central portions thereof and adapted to bear upon the nose, said loops being so'arranged that a relative motion will be produced between the arms thereof when the lenses are separated endwise in a horizontal plane, of guards each having bearings on both arms of one loop and arranged to move outwardly when said lenses are separated.

10. In eyeglasses, the combination with the lenses, of a spring having its ends extending downwardly from the central portion thereof and doubled upwardly to form loops, the free ends of which are attached to said lenses, and guards having bearings upon the arms of said loops and arranged to separate when relative motion takes place between the arms of said loops.

11. In eyeglasses, the combination with the lenses, of a spring attached thereto and having resilient loops formed therein the arms of which lie in planes substantially parallel with the plane of the lenses, of guards having bearings upon the arms of said loops and adapted to move outwardly when relative motion takes place between the latter.

12. In eyeglasses, the combination with the lenses, of a spring having its extremities attached thereto and resilient loops formed therein adjacent said attached ends and so arranged that a torsional strain will be exerted on the loops when said lenses are separated, and guards having bearings upon the arms of said loops adjacent said attached portionsand adapted to move outwardly when relative motion takes place between said arms.

13. In eyeglasses, the combination with the lenses, of the arched spring having the portions extending downwardly from the center, thence upwardly to form the lower loops, thence laterally, the ends being connected to the lenses, and guards pivotedto one of the arms of the loops and loosely engaging the other, said guards being movable in a horizontal plane as the lenses are separated.

14. In eyeglasses, the combination with a lens, of a support connected thereto and adapted to rest upon the nose of the wearer embodying two vertically-extending spring arms or portions connected at one end, and a nose guard or clamp connected to one of said arms and having a bearing upon the other.

15. In eyeglasses, the combination with the lenses, and a bridge connecting them having resilient or yielding portions between the points of attachment and its central portion, of guards each having a pivotal connection with the bridge at a point adjacent its connection to the lens and at another relatively movable point, whereby the separating motion of the lenses will cause the operation of the guards. 1

16. In eyeglasses, the combination with the lenses, and a bridge connecting them, of a pair of nose-guards having relatively immovable resilient loops adapted to rest against the wearers nose, and relatively movable portions each engaging both arms of each loop in such manner that the spring action of the latter tends to proximate said movable portions.

' LEO F. ADT.

Witnesses:

MIcHAEL F. OCoNNoR, JAs. B. EGAN. 

